.img-url {
  margin: 5px;
  border: 1px solid yellow;
}
.mag {
  display: flex;

  .mag-ing {
    width: 400px;
    height: 400px;
    border: 10px solid black;
    position: relative;
    margin-right: 10px;
    .img-ing {
      width: 100%;
      height: 100%;
    }
    .bar {
      width: 100px;
      height: 100px;
      background: yellow;
      opacity: 0.4;
      position: absolute;
      top: 0;
      left: 0;
      cursor: move;
    }
  }
  .mag-show-ing {
    width: 400px;
    height: 400px;
    border: 1px solid black;
    background-size: 1600px;
    background-position: 0 0;
    background-repeat: no-repeat;
  }
}
